PDSD

Course Overview

The Proficiency for Seafarers with Designated Security Duties (PDSD) is an STCW mandatory qualification introduced by the 2010 Manila Amendments to the STCW Convention, effective 1 July 2015. It is governed by STCW Regulation VI/6, paragraphs 4–6, and Section A-VI/6, Table A-VI/6-2, and sits within the framework of the International Ship and Port Facility Security (ISPS) Code, which implements SOLAS Chapter XI-2. In the UK, PDSD certificates are issued by MCA-approved training providers and are internationally recognised across flag states.

PDSD is required for any seafarer assigned designated security duties in the Ship Security Plan (SSP) aboard an ISPS-compliant vessel — commercially operated ships of 500 gross tonnes or more on international voyages. In the superyacht sector, this means yachts of approximately 50 metres or larger operating commercially. Because commercial superyachts carry small crews, MCA guidance indicates that virtually all working crew will hold some form of designated security duty, making PDSD the de facto standard. Crew who hold PDSD do not also need the lighter-tier PSA (Proficiency in Security Awareness) certificate, as PDSD encompasses and extends all PSA content.

The absence of a valid PDSD certificate for crew listed in an SSP is a Port State Control (PSC) inspection deficiency that can result in vessel detention. Both deck and interior crew may be required to hold PDSD depending on their listed duties.

Key Facts

Validity note: The STCW Code (Table A-VI/6-2) does not specify an expiry period for PDSD, and the UK MCA does not currently mandate revalidation. Multiple MCA-approved providers confirm the certificate has no official expiry. However, a voluntary 5-year refresh cycle is common industry practice, and some flag states or yacht management companies may apply their own internal renewal requirements. Crew should verify current requirements with their flag state and employer before relying solely on the base STCW/MCA position.